From: Daan De Meyer <daan.j.demeyer@gmail.com>
Date: Sun, 1 Jun 2025 18:24:47 +0000 (+0200)
Subject: repart: Apply verity-sig max size based on partition type
X-Git-Tag: v258-rc1~430
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=92d888235edd4d1294561845ecb4c35cc6c0f0c9;p=thirdparty%2Fsystemd.git

repart: Apply verity-sig max size based on partition type

We already do this for partition_min_size(), let's do it for
partition_max_size() as well. This makes sure repart doesn't accidentally
try to grow verity sig partitions to larger sizes than the hardcoded
max size in systemd.
---

diff --git a/src/repart/repart.c b/src/repart/repart.c
index f3cc69ef113..ab212b4f42b 100644
--- a/src/repart/repart.c
+++ b/src/repart/repart.c
@@ -921,7 +921,7 @@ static uint64_t partition_min_size(const Context *context, const Partition *p) {
                 return p->current_size;
         }
 
-        if (IN_SET(p->type.designator, PARTITION_ROOT_VERITY_SIG, PARTITION_USR_VERITY_SIG))
+        if (partition_designator_is_verity_sig(p->type.designator))
                 return VERITY_SIG_SIZE;
 
         sz = p->current_size != UINT64_MAX ? p->current_size : HARD_MIN_SIZE;
@@ -967,7 +967,7 @@ static uint64_t partition_max_size(const Context *context, const Partition *p) {
                 return p->current_size;
         }
 
-        if (p->verity == VERITY_SIG)
+        if (partition_designator_is_verity_sig(p->type.designator))
                 return VERITY_SIG_SIZE;
 
         override_max = p->suppressing ? MIN(p->size_max, p->suppressing->size_max) : p->size_max;
diff --git a/src/shared/gpt.h b/src/shared/gpt.h
index f81c377c683..9e5ace35a45 100644
--- a/src/shared/gpt.h
+++ b/src/shared/gpt.h
@@ -31,6 +31,10 @@ typedef enum PartitionDesignator {
 
 bool partition_designator_is_versioned(PartitionDesignator d) _const_;
 
+static inline bool partition_designator_is_verity_sig(PartitionDesignator d) {
+        return IN_SET(d, PARTITION_ROOT_VERITY_SIG, PARTITION_USR_VERITY_SIG);
+}
+
 PartitionDesignator partition_verity_of(PartitionDesignator p) _const_;
 PartitionDesignator partition_verity_sig_of(PartitionDesignator p) _const_;
 PartitionDesignator partition_verity_to_data(PartitionDesignator d) _const_;